106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/*=========================================================================
|
|
|
|
Program: KWSys - Kitware System Library
|
|
Module: $RCSfile$
|
|
|
|
Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notices for more information.
|
|
|
|
=========================================================================*/
|
|
#ifndef @KWSYS_NAMESPACE@_DynamicLoader_hxx
|
|
#define @KWSYS_NAMESPACE@_DynamicLoader_hxx
|
|
|
|
#include <@KWSYS_NAMESPACE@/Configure.h>
|
|
|
|
#if defined(__hpux)
|
|
#include <dl.h>
|
|
#elif defined(_WIN32) && !defined(__CYGWIN__)
|
|
#include <windows.h>
|
|
#elif defined(__APPLE__)
|
|
#include <AvailabilityMacros.h>
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
|
|
#include <mach-o/dyld.h>
|
|
#endif
|
|
#elif defined(__HAIKU__)
|
|
#include <os/kernel/image.h>
|
|
#elif defined(__BEOS__)
|
|
#include <be/kernel/image.h>
|
|
#endif
|
|
|
|
namespace @KWSYS_NAMESPACE@
|
|
{
|
|
/** \class DynamicLoader
|
|
* \brief Portable loading of dynamic libraries or dll's.
|
|
*
|
|
* DynamicLoader provides a portable interface to loading dynamic
|
|
* libraries or dll's into a process.
|
|
*
|
|
* Directory currently works with Windows, Apple, HP-UX and Unix (POSIX)
|
|
* operating systems
|
|
*
|
|
* \warning dlopen on *nix system works the following way:
|
|
* If filename contains a slash ("/"), then it is interpreted as a (relative
|
|
* or absolute) pathname. Otherwise, the dynamic linker searches for the
|
|
* library as follows : see ld.so(8) for further details):
|
|
* Whereas this distinction does not exist on Win32. Therefore ideally you
|
|
* should be doing full path to garantee to have a consistent way of dealing
|
|
* with dynamic loading of shared library.
|
|
*
|
|
* \warning the Cygwin implementation do not use the Win32 HMODULE. Put extra
|
|
* condition so that we can include the correct declaration (POSIX)
|
|
*/
|
|
|
|
class @KWSYS_NAMESPACE@_EXPORT DynamicLoader
|
|
{
|
|
public:
|
|
// Ugly stuff for library handles
|
|
// They are different on several different OS's
|
|
#if defined(__hpux)
|
|
typedef shl_t LibraryHandle;
|
|
#elif defined(_WIN32) && !defined(__CYGWIN__)
|
|
typedef HMODULE LibraryHandle;
|
|
#elif defined(__APPLE__)
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
|
|
typedef NSModule LibraryHandle;
|
|
#else
|
|
typedef void* LibraryHandle;
|
|
#endif
|
|
#elif defined(__BEOS__)
|
|
typedef image_id LibraryHandle;
|
|
#else // POSIX
|
|
typedef void* LibraryHandle;
|
|
#endif
|
|
|
|
// Return type from DynamicLoader::GetSymbolAddress.
|
|
typedef void (*SymbolPointer)();
|
|
|
|
/** Load a dynamic library into the current process.
|
|
* The returned LibraryHandle can be used to access the symbols in the
|
|
* library. */
|
|
static LibraryHandle OpenLibrary(const char*);
|
|
|
|
/** Attempt to detach a dynamic library from the
|
|
* process. A value of true is returned if it is sucessful. */
|
|
static int CloseLibrary(LibraryHandle);
|
|
|
|
/** Find the address of the symbol in the given library. */
|
|
static SymbolPointer GetSymbolAddress(LibraryHandle, const char*);
|
|
|
|
/** Return the library prefix for the given architecture */
|
|
static const char* LibPrefix();
|
|
|
|
/** Return the library extension for the given architecture. */
|
|
static const char* LibExtension();
|
|
|
|
/** Return the last error produced from a calls made on this class. */
|
|
static const char* LastError();
|
|
}; // End Class: DynamicLoader
|
|
|
|
} // namespace @KWSYS_NAMESPACE@
|
|
|
|
#endif
|